Although much of Hallam Foe is filmed in central Edinburgh, the film avoids showing Edinburgh Castle, which is visible from many of the real life locations.
Hallam works in the Balmoral Hotel at the East end of Princes Street, yet all shots of the staff entrance to the hotel are clearly the Caledonian Hotel at the West end of the Street.
Kate Breck: I'm a real live human being Hallam. Sometimes I want sweet; sometimes I want sour. Sometimes I don't know what I want. My shit stinks. I'm going to die someday. If I look like your mother, it's just a coincidence. Am I telling you anything you don't already know?